Fixed mistake parsing charge description & statute.

[OscarVanL]

This PR fixes a mistake separating the charge description and statute from the full charge string in the case there were twos sets of brackets.

For instance, when parsing the text: FELON IN POSSESSION OF AMMUNITION (ACTUAL POSSESSION) (79023)

Before this would be parsed as: description=='FELON IN POSSESSION OF AMMUNITION', statute=='ACTUAL POSSESSION'

Now this is correctly parsed as: description=='FELON IN POSSESSION OF AMMUNITION (ACTUAL POSSESSION)', statute==' 79023'

• It also separates the parsing names into a function to allow for unit testing.

• New tests for added test coverage.

• Solves some deprecation warnings about the use of escape characters.